diff --git a/rendering/cases/zoomify-no-zdirection/expected.png b/rendering/cases/zoomify-no-zdirection/expected.png
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diff --git a/rendering/cases/zoomify-no-zdirection/main.js b/rendering/cases/zoomify-no-zdirection/main.js
new file mode 100644
index 0000000000..50f4645a31
--- /dev/null
+++ b/rendering/cases/zoomify-no-zdirection/main.js
@@ -0,0 +1,25 @@
+import Map from '../../../src/ol/Map.js';
+import View from '../../../src/ol/View.js';
+import TileLayer from '../../../src/ol/layer/Tile.js';
+import Zoomify from '../../../src/ol/source/Zoomify.js';
+
+const layer = new TileLayer({
+  source: new Zoomify({
+    url: '/data/tiles/zoomify/',
+    size: [200, 200],
+    tileSize: 100
+  })
+});
+
+new Map({
+  layers: [layer],
+  target: 'map',
+  view: new View({
+    resolutions: [2, 1],
+    extent: [0, -200, 200, 0],
+    center: [100, -100],
+    zoom: 0.4
+  })
+});
+
+render();
diff --git a/rendering/cases/zoomify-zdirection/expected.png b/rendering/cases/zoomify-zdirection/expected.png
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diff --git a/rendering/cases/zoomify-zdirection/main.js b/rendering/cases/zoomify-zdirection/main.js
new file mode 100644
index 0000000000..9a854dae6a
--- /dev/null
+++ b/rendering/cases/zoomify-zdirection/main.js
@@ -0,0 +1,26 @@
+import Map from '../../../src/ol/Map.js';
+import View from '../../../src/ol/View.js';
+import TileLayer from '../../../src/ol/layer/Tile.js';
+import Zoomify from '../../../src/ol/source/Zoomify.js';
+
+const layer = new TileLayer({
+  source: new Zoomify({
+    url: '/data/tiles/zoomify/',
+    size: [200, 200],
+    tileSize: 100,
+    zDirection: -1
+  })
+});
+
+new Map({
+  layers: [layer],
+  target: 'map',
+  view: new View({
+    resolutions: [2, 1],
+    extent: [0, -200, 200, 0],
+    center: [100, -100],
+    zoom: 0.4
+  })
+});
+
+render();
diff --git a/rendering/data/tiles/zoomify/TileGroup0/0-0-0.jpg b/rendering/data/tiles/zoomify/TileGroup0/0-0-0.jpg
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diff --git a/rendering/data/tiles/zoomify/TileGroup0/1-0-1.jpg b/rendering/data/tiles/zoomify/TileGroup0/1-0-1.jpg
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